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Re: [O] Error when exporting LaTeX


From: Peter Davis
Subject: Re: [O] Error when exporting LaTeX
Date: Wed, 24 Jun 2015 08:45:39 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4.51 (darwin)

Peter Davis <address@hidden> writes:

> I'm writing a fairly simple document with some #+BEGIN_SRC/#+END_SRC
> blocks, and when I try to export to LaTeX/PDF, I get:
>
> org-latex-src-block: Wrong type argument: stringp, nil
>
> Does this ring any bells? I can try to cobble together a "neutralized"
> sample to reproduce the problem, but I thought I'd see if anyone
> recognized it.

Ok, here's a sample file and image that reproduces the problem. Any help
appreciated.

Thank you.

-pd

#+STARTUP: showeverything logdone
#+options: num:nil
#+OPTIONS:   H:5 num:t \n:nil @:t ::t |:t ^:nil -:t f:t *:t <:t
#+LaTeX_CLASS: koma-article
#+LaTeX_HEADER: \usepackage{listings}
#+LATEX_HEADER: \setlength{\parskip}{2ex plus 4pt minus 2pt}
#+LATEX_HEADER: \setlength{\parindent}{0pt}
#+LATEX_HEADER: \renewcommand{\baselinestretch}{1.0}
#+LATEX_HEADER: \setlength{\topsep}{-10pt}
#+LATEX_HEADER: \setlength{\partopsep}{0pt}
#+LaTeX_HEADER: \usepackage{xcolor}
#+LaTeX_HEADER: \lstset{
#+LaTeX_HEADER:     basicstyle=\ttfamily,
#+LaTeX_HEADER:     breaklines=true,
#+LaTeX_HEADER:     prebreak=\mbox{\ensuremath{\color{red}\hookleftarrow}},
#+LaTeX_HEADER:     
postbreak=\raisebox{0ex}[0ex][0ex]{\ensuremath{\color{red}\hookrightarrow\space}},
#+LaTeX_HEADER:     columns=fullflexible,
#+LaTeX_HEADER:     keepspaces=true
#+LaTeX_HEADER: }
#+LaTeX_CLASS_OPTIONS: [article,letterpaper,times,12pt,listings-bw,microtype]
#+author: Peter Davis
#+title: LaTeX export issue

* Overview

Many applications using the XYZCo API will follow a sequence of operations like 
this:

** User logs in, establishing identity and access privileges

The login page is invoked via an http request, such as:

#+BEGIN_SRC js
GET http://local.xyzco.com:3000/sample/login
#+END_SRC

In the Sample App, this results in a page showing four buttons:

[[./pd-logo-jelly-small.gif]]

** Login with XYZ

If the user selects "Login with XYZ", the Sample App invokes this URL:

#+BEGIN_SRC
GET http://local.xyzco.com:3000/sample/auth/xyz
#+END_SRC

The response, 302, results in a redirect to a new page prompting for username 
and password is presented[1]:

#+BEGIN_SRC js
GET 
http://sandbox.api.xyzco.com:8080/openid-connect/v2/authorize?response_type=code&redirect_uri=http%3A%2F%2Flocal.xyzco.com%3A3000%2Fsample%2Fauth%2Fxyz%2Fcallback&scope=openid&client_id=152ced50-1369-4b19-8b26-8f3d5d9bfd6a.xyzco.com
#+END_SRC

[[./pd-logo-jelly-small.gif]]

Entering a username and password here results in this request:

#+BEGIN_SRC js
POST 
http://sandbox.api.xyzco.com:8080/openid-connect/j_spring_security_check?response_type=code&redirect_uri=http%3A%2F%2Flocal.xyzco.com%3A3000%2Fsample%2Fauth%2Fxyz%2Fcallback&scope=openid&client_id=152ced50-1369-4b19-8b26-8f3d5d9bfd6a.xyzco.com
#+END_SRC

[[./pd-logo-jelly-small.gif]]

** The application provides security information (e.g., OAuth2 token) to enable 
access to information

#+BEGIN_SRC js
GET 
http://sandbox.api.xyzco.com:8080/openid-connect/v2/authorize?response_type=code&redirect_uri=http%3A%2F%2Flocal.xyzco.com%3A3000%2Fsample%2Fauth%2Fxyz%2Fcallback&scope=openid&client_id=152ced50-1369-4b19-8b26-8f3d5d9bfd6a.xyzco.com
#+END_SRC

#+BEGIN_SRC js
GET 
http://local.xyzco.com:3000/sample/auth/xyz/callback?code=eyJhbGciOiLlif_vla6jwjA
 ...
#+END_SRC

>From this point, the application can present other options to the user.

[1] If the user is not already logged in, he or she will see the login page

Attachment: pd-logo-jelly-small.gif
Description: sample image for use with error file


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